Human Organs For Sale Pro And Cons Debate

"conic sections" TUESDAY CLASS OF 23 - JUNE - 2009

METHODS OF CONSTRUCTION OF GEOMETRIC CURVE:

1 .- Method to draw an ellipse given its two axes.
- Plot the major axis AB and CD the minor axis, perpendicular to each other by the middle of both axes.
- Making center in the middle "M", we draw two concentric circles with radii equal to MA and MC.
- then divide the two circles in a pair of equal parts. In this case were 12 equal parts.
- On the big points on the circle, draw lines parallel to the axis CD.
- For the points on the circle small to draw lines parallel to the axis AB.
- Where the lines belonging to the same point in two intersecting circles is a point through which passes the curve of the ellipse.
- Repeat this with all the points of two circles.
- Finally a staff of curves joining the points of the ellipse. 2 .-

METHOD GIVEN to draw an ellipse the major axis AB & BULBS FYF '.
- Draw the major axis AB and was seeking the midpoint M and he draws a line perpendicular to AB.
- The axis AB are located at points F and F '.
- are marked several arbitrary points between O and F '.
- Making center F and F 'on OA opening and arches mark to cut the line perpendicular to AB, which results in points C and D, points of the minor axis of the ellipse.
- After making center at F and F 'on opening A1 and arches mark.
- After making center at F and F 'on and B1 mark opening arcs.
- Where they cut the arches are the first points through which the ellipse.
- Do the same with the remaining points between O and F ', to get all points of the ellipse.
- Finally a staff of curves joining the points of the ellipse. 3 .-

METHOD FOR DRAWING A PARABLE BC GUIDELINE GIVEN THE GO RTIC "A" AND AXLE EE '.
- the vertex is located, BC guideline is drawn and plotted the axis EE '.
- Making centered on "E" and EA is opening an arc to cut the shaft and locate the point "F" which is the focus of the parabola.
- are marked several arbitrary points between E and E '.
- parallel lines are drawn to the guidance for each of the arbitrary points between E and E '.
- Making center "F" and opening A1 describes arcs which cut the line that passes through the point 1 on both sides of the shaft getting the points G and G '.
- Do the same with the remaining points between E and E ', to get all points of the parabola.
- Finally a staff of curves joining the points of the parabola. 4 .-

METHOD GIVEN TO DRAW A hyperbola asymptotes BB 'and CC' AND AXLE AA '.
- Draw the axis AA 'and was looking for the midpoint M.
- By the mid-point M draw the 2 asymptotes.
- For the points A and A 'draw lines parallel to the asymptotes to cut to the asymptotes in the extension, getting the points D0, E0, F0 and G0.
- After opening MD0 is copied to this distance on each of the two asymptotes from the points D0, E0, F0 and G0.
- For each of the items found are drawn parallel to the asymptotes.
- then you'll be looking at the segment midpoint AD0 and draw a parallel to the asymptote, obtaining the point A1.
- To get the other points that make up the parable is the same on.
- then join all the dots with a curved template.